/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import {defineComponent, PropType, ref, watch, reactive} from 'vue'
import initChart from '@/components/chart'
import type {Ref} from 'vue'
import {IChartDataItem} from '@/components/chart/modules/types'

const props = {
    height: {
        type: [String, Number] as PropType<string | number>,
        default: 590
    },
    width: {
        type: [String, Number] as PropType<string | number>,
        default: '100%'
    },
    data: {
        type: Array as PropType<Array<IChartDataItem>>
    }
}

const TreeChart = defineComponent({
    name: 'TreeChart',
    props,
    setup(props) {
        const treeChartRef: Ref<HTMLDivElement | null> = ref(null)

        const option = reactive({
            tooltip: {
                trigger: 'item',
                backgroundColor: '#fff'
            },
            textStyle: {
                fontSize: 14
            },
            series: [
                {
                    type: 'tree',
                    id: 0,
                    name: 'tree1',
                    data: props.data,
                    top: '10%',
                    left: '5%',
                    bottom: '10%',
                    right: '15%',
                    symbol: 'circle',
                    symbolSize: 18,
                    edgeShape: 'polyline',
                    edgeForkPosition: '63%',
                    initialTreeDepth: 'auto',
                    lineStyle: {
                        width: 3
                    },
                    label: {
                        backgroundColor: '#fff',
                        position: 'left',
                        verticalAlign: 'middle',
                        align: 'right'
                    },
                    leaves: {
                        label: {
                            position: 'right',
                            verticalAlign: 'middle',
                            align: 'left'
                        }
                    },
                    emphasis: {
                        focus: 'descendant'
                    },
                    expandAndCollapse: true,
                    animationDuration: 550,
                    animationDurationUpdate: 750
                }
            ]
        })

        initChart(treeChartRef, option)

        watch(
            () => props.data,
            () => {
                option.series[0].data = props.data
            }
        )

        return {treeChartRef}
    },
    render() {
        const {height, width} = this
        return (
            <div
                ref='treeChartRef'
                style={{
                    height: typeof height === 'number' ? height + 'px' : height,
                    width: typeof width === 'number' ? width + 'px' : width
                }}
            />
        )
    }
})

export default TreeChart
